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Search Results: 1 - 10 of 147 matches for " Ferda Karakus "
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The Growth Traits of Karakas and its Crosses Lambs (F1) with Ile De France x Akkaraman (G1) under Unlimited Suckling Regime
Ozdal Gokdal,Hasan Ulker,Ferda Karakus,Firat Cengiz
Journal of Biological Sciences , 2006,
Abstract: In this study, the growth traits of Karakas and (Ile de France x Akkaraman (G1)) x Karakas crosses (F1) (IDFAK) lambs were investigated. Ewes in the flock were not milked and lambs were subjected to unlimited suckling regime without weaning. Least squares means of weights of IDFAK and Karakas lambs at birth and 1-6th months were 4.67 and 4.08 kg (p<0.01), 9.16 and 9.49 kg, 14.87 and 15.44 kg, 22.31 and 24.12 kg, 30.84 and 32.51 kg, 35.34 and 33.79 kg, 39.51 and 35.99 kg, respectively. Least squares means of daily live weight gains of IDFAK and Karakas lambs from birth to 1., 2., 3., 4., 5. and 6th months of age and between 3-6th months were 0.159 and 0.170 kg, 0.174 and 0.184 kg, 0.198 and 0.219 kg, 0.221 and 0.235 kg, 0.207 and 0.197 kg, 0.196 and 0.177 kg, 0.202 and 0.172 kg, respectively. The survival rates of IDFAK and Karakas lambs until 60th day were 95.94% and 89.79%, respectively (p<0.05). It seems that (Ile de France x Akkaraman (G1)) x Karakas crosses (F1) lambs reached to marketing age more short time than Karakas lambs. It could be concluded that Ile de France x Akkaraman (G1) genotype is useful in improving lamb production in Karakas sheep and desired growth could be obtained especially for cross lambs during 5th and 6th month age.
Phenotypic Correlations among Fleece Traits in Norduz and Karakas Sheep
Askin Kor,Ferda Karakus,Seckin Tuncer,Ayhan Yilmaz,Mehmet Bingol,Firat Cengiz
Journal of Animal and Veterinary Advances , 2012, DOI: 10.3923/javaa.2011.574.576
Abstract: In this research, it was aimed to determine the phenotypic correlations among some physical traits of Norduz and Karakas sheep. Animal material was consisted from 2-6 years of age of breeding flocks of 50 Norduz and 50 Karakas ewes. Traits measured were greasy fleece weight, fiber diameter, clean fleece percentage, staple length, single fiber actual length, single fiber natural length, breaking strength, elasticity and the number of crimp in 2.54 cm. There was a positive correlation between clean fleece percentage and fiber diameter, it was insignificant for both genotypes. The estimated phenotypic correlations between staple length and greasy fleece weight was 0.403 (p<0.01) and 0.445 (p<0.01) in Norduz and Karakas sheep, respectively. It was understood that traits like fiber diameter, length, fleece weight and the number of crimp should be evaluated together in breeding studies on fleece yield in Norduz and Karakas sheep.
Cathodoluminescence (CL) Microscopy Application to Refractories and Slags  [PDF]
Musa Karakus, Robert E. Moore
Journal of Minerals and Materials Characterization and Engineering (JMMCE) , 2002, DOI: 10.4236/jmmce.2002.11002
Abstract: Refractories are ceramic materials possessing high thermal shock properties and slag corrosion resistance, as well as creep resistance at high temperatures. They are used in large quantities in steel making furnaces, metal smelting vessels, and glass melting tanks, and are made from very refractory minerals such as lime, periclase, corundum, spinel, and zirconia. Slags are residual vitreous materials generated during steel refining processes. They cover a wide range of compositions and may contain pure oxides, silicates, and sulfides as well as fluoride phases, depending on the melting and smelting processes. These minerals exhibit spectacular cathodoluminescence color when bombarded with electrons. Cathodoluminescence (CL) microscopy, therefore, is a very effective technique for the characterization of refractory corrosion by slags. Studies in this paper include: (1) reaction of fluorine containing mold slags with ZrO2-C nozzle refractories, promoting crystallization of cuspidine [Ca4Si2O7(F,OH)2], (2) corrosion of fusion cast refractories and formation of glass defects in TV panel glassmaking furnaces, and (3) densification of spinel-based castable in steel melting induction furnace.
Delusional Parasitosis: Clinical Features, Diagnosis and Treatment
Gonca Karakus
Psikiyatride Guncel Yaklasimlar , 2010,
Abstract: Delusional parasitosis is a delusional disorder in which the patient has the false and persistent belief that he is infested by some type of parasite or small living creatures. The disease has been called under different names such as “Ekbom syndrome” or psychogenic parasitosis in the last century. Delusional parasitosis is divided into primary, secondary functional and secondary organic groups. The female-to-male ratio in delusional parasitosis is approximately 2:1.Delusional parasitosis is associated in 5-15% of shared psychotic disorder and can run within a family (folie a familie). The diagnosis is one of exclusion, and other diseases that can also cause a sensation of itching should be considered, investigated, and treated if present. Lack of treatment might cause delusional symptoms to gain chronicity, and might further complicate treatment response. Antipsychotics, antidepressants, electroconvulsive therapy, and in the presence of dermatological lesions some topical dermatological agents and antihistaminics are used in the treatment of this disorder.
Thermal Degradation, Mechanical Properties and Morphology of Wheat Straw Flour Filled Recycled Thermoplastic Composites
Fatih Mengeloglu,Kadir Karakus
Sensors , 2008, DOI: 10.3390/s8010500
Abstract: Thermal behaviors of wheat straw flour (WF) filled thermoplastic compositeswere measured applying the thermogravimetric analysis and differential scanningcalorimetry. Morphology and mechanical properties were also studied using scanningelectron microscope and universal testing machine, respectively. Presence of WF inthermoplastic matrix reduced the degradation temperature of the composites. One for WFand one for thermoplastics, two main decomposition peaks were observed. Morphologicalstudy showed that addition of coupling agent improved the compatibility between WFs andthermoplastic. WFs were embedded into the thermoplastic matrix indicating improvedadhesion. However, the bonding was not perfect because some debonding can also be seenon the interface of WFs and thermoplastic matrix. In the case of mechanical properties ofWF filled recycled thermoplastic, HDPE and PP based composites provided similar tensileand flexural properties. The addition of coupling agents improved the properties ofthermoplastic composites. MAPE coupling agents performed better in HDPE while MAPPcoupling agents were superior in PP based composites. The composites produced with thecombination of 50-percent mixture of recycled HDPE and PP performed similar with theuse of both coupling agents. All produced composites provided flexural properties requiredby the ASTM standard for polyolefin-based plastic lumber decking boards.
Factors Influencing Reproductive Performance in Norduz Ewes (Local Ewes) in Turkey
Kadir Karakus,Hamit Mirtagioglu
Journal of Animal and Veterinary Advances , 2012,
Abstract: The objective of this study is to analyze by generalized linear mixed modeling technique with binomial structure data for reproductive characteristics in Norduz local ewes in Turkey. The data were collected from Yuzuncu Yil University, Animal Science Breeding Farm in Turkey. A total of 83 ewes and their 94 lambs at born 2004 season were included in the analysis born over a period of one year. Five Norduz rams were analyzed for sperm characteristics before artificial insemination (AI). AI is applied according to sperm performance of rams. Reproductive characteristics were included birth weight (BW), birth type, sex and return or non-returning (RNR) performance for two successive estrus cycles of ewes and age of dam (2, 3, 4 and 5). As regards of the criteria for Goodness of Fits for investigated traits, the values of the fitting results indicated that using models are good fit for all traits. Effecting birth type and sex of lamb have been importance effects on the BW. On the other hand, effect of age of the dam, ram and returning have not been significantly on the BW. According to the results, lambs` ram produced medium (3 or 4 mass activity score) quality of the sperm have been higher BW than others. Male and single born lambs have been also highest BW. In the analysis a GENMOD procedure for an unequal design was used in order to account for the effect of some reproduction traits. In this study, GENMOD procedure accounts for the effect of these traits on the estimates of parameters, if all information upon which the culling decisions were made included in the data.
Matrix Summability and Korovkin Type Approximation Theorem on Modular Spaces
S. Karakus and K. Demirci
ACTA MATHEMATICA UNIVERSITATIS COMENIANAE , 2011,
Abstract: In this paper, using a matrix summability method we obtain a Korovkin type approximation theorem for a sequence of positive linear operators defined on a modular space.
Matrix Summability and Korovkin Type Approximation Theorem on Modular Spaces
S. Karakus,K. Demirci
ACTA MATHEMATICA UNIVERSITATIS COMENIANAE , 2010,
Abstract: In this paper, using a matrix summability method we obtain a Korovkin type approximation theorem for a sequence of positive linear operators defined on a modular space.
Thermal Degradation, Mechanical Properties and Morphology of Wheat Straw Flour Filled Recycled Thermoplastic Composites
Fatih Mengeloglu,Kadir Karakus
Sensors , 2008,
Abstract: Thermal behaviors of wheat straw flour (WF) filled thermoplastic compositeswere measured applying the thermogravimetric analysis and differential scanningcalorimetry. Morphology and mechanical properties were also studied using scanningelectron microscope and universal testing machine, respectively. Presence of WF inthermoplastic matrix reduced the degradation temperature of the composites. One for WFand one for thermoplastics, two main decomposition peaks were observed. Morphologicalstudy showed that addition of coupling agent improved the compatibility between WFs andthermoplastic. WFs were embedded into the thermoplastic matrix indicating improvedadhesion. However, the bonding was not perfect because some debonding can also be seenon the interface of WFs and thermoplastic matrix. In the case of mechanical properties ofWF filled recycled thermoplastic, HDPE and PP based composites provided similar tensileand flexural properties. The addition of coupling agents improved the properties ofthermoplastic composites. MAPE coupling agents performed better in HDPE while MAPPcoupling agents were superior in PP based composites. The composites produced with thecombination of 50-percent mixture of recycled HDPE and PP performed similar with theuse of both coupling agents. All produced composites provided flexural properties requiredby the ASTM standard for polyolefin-based plastic lumber decking boards.
Opportunistic Scheduling for Full-Duplex Uplink-Downlink Networks
Can Karakus,Suhas Diggavi
Mathematics , 2015,
Abstract: We study opportunistic scheduling and the sum capacity of cellular networks with a full-duplex multi-antenna base station and a large number of single-antenna half-duplex users. Simultaneous uplink and downlink over the same band results in uplink-to-downlink interference, degrading performance. We present a simple opportunistic joint uplink-downlink scheduling algorithm that exploits multiuser diversity and treats interference as noise. We show that in homogeneous networks, our algorithm achieves the same sum capacity as what would have been achieved if there was no uplink-to-downlink interference, asymptotically in the number of users. The algorithm does not require interference CSI at the base station or uplink users. It is also shown that for a simple class of heterogeneous networks without sufficient channel diversity, it is not possible to achieve the corresponding interference-free system capacity. We discuss the potential for using device-to-device side-channels to overcome this limitation in heterogeneous networks.
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